3		1			5
					8
6	3	5
		2
					3
					7	6	4
		7
1			3		4

Difficulty: Very easy (0)

				5			2
		3		7
						2
3	4					6
	7					8	5
	8
			2		1
6			5

Difficulty: Very easy (0)

1	4
			5			4	6
			7			8	1
8	3			6
7	6			3
						3	2

Difficulty: Very easy (0)

	7	5		3	1
		6			5	7
	8						7
				5	4
		4	1
3						1
	2	3			7
		7	5		8	4

Difficulty: Super easy (0)